Patents by Inventor Imtiaz Ahmad Khan

Imtiaz Ahmad Khan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for distinguishing short-circuit events in high inrush current systems
    Patent number: 11722130
    Abstract: A method of protecting a load circuit includes sensing a load current passing through a switch electrically in series with the load circuit, sensing a voltage drop across the switch, determining a rate of change of the voltage drop across the switch, determining whether to deactivate the switch based on the load current and the rate of change of the voltage drop across the switch, in response to determining to deactivate the switch, deactivating the switch to shut off current to the load circuit.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: August 8, 2023
    Assignee: LEACH INTERNATIONAL CORPORATION
    Inventors: Anhtai Le Tran, Imtiaz Ahmad Khan, Farshid Tofigh, Chad Uyehara, Tony Hana
  • SYSTEM FOR PROTECTING ELECTROMECHANICAL SWITCHGEARS AND PROTECTION CIRCUITS IN HIGH-VOLTAGE APPLICATIONS
    Publication number: 20220239094
    Abstract: An electromechanical switching protection system includes an electromechanical switchgear having contacts configured to selectively open and close in response to a control signal, and a junction field effect transistor (JFET) device electrically connected in series with the electromechanical switchgear between an input terminal and an output terminal of the electromechanical switching protection system, a gate of the JFET device being electrically connected to the output terminal.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 28, 2022
    Inventors: IMTIAZ AHMAD KHAN, ANHTAI LE TRAN, KYLE RICHARD CANTU
  • System for protecting electromechanical switchgears and protection circuits in high-voltage applications
    Patent number: 11381079
    Abstract: An electromechanical switching protection system includes an electromechanical switchgear having contacts configured to selectively open and close in response to a control signal, and a junction field effect transistor (JFET) device electrically connected in series with the electromechanical switchgear between an input terminal and an output terminal of the electromechanical switching protection system, a gate of the JFET device being electrically connected to the output terminal.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: July 5, 2022
    Assignee: LEACH INTERNATIONAL CORPORATION
    Inventors: Imtiaz Ahmad Khan, Anhtai Le Tran, Kyle Richard Cantu